How To Proceed With Troubleshooting [08/2015 - ]: Procedure

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VEHICLE BROUGHT TO WORKSHOP
Result

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Result:

NEXT

See step 2

CUSTOMER PROBLEM ANALYSIS CHECK

HINT:

In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.

The following 5 items are important points for problem analysis:

What	Vehicle model, system name
When	Date, time, occurrence frequency
Where	Road conditions
Under what conditions?	Running conditions, driving conditions, weather conditions
How did it happen?	Problem symptoms

Result

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Result:

See step 3

INSPECT BATTERY VOLTAGE

Measure the battery voltage.

Standard voltage

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

Result

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Result:

See step 4

CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

Use the Techstream to check if the CAN communication system is functioning normally.

See HOW TO PROCEED WITH TROUBLESHOOTING [08/2015 - ]

Result

Result	Proceed to
CAN DTC is not output	A
CAN DTC is output	B

Result:

GO TO CAN COMMUNICATION SYSTEM. See DIAGNOSIS SYSTEM [08/2015 - 08/2017] , or see DIAGNOSIS SYSTEM [08/2017 - 08/2019] , or see DIAGNOSIS SYSTEM [08/2019 - ]

Result:

See step 5

CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

Use the Techstream to check if the LIN communication system is functioning normally.

See DTC CHECK / CLEAR [08/2015 - ]

Result

Result	Proceed to
LIN DTC is not output	A
LIN DTC is output	B

Result:

GO TO LIN COMMUNICATION SYSTEM. See DIAGNOSTIC TROUBLE CODE CHART [08/2015 - ]

Result:

See step 6

CHECK FOR DTC (POWER WINDOW CONTROL SYSTEM)*

Clear the DTCs.
See DTC CHECK / CLEAR [08/2015 - ]

Recheck for DTCs.

Result

Result	Proceed to
DTC B2312 is not output	A
DTC B2312 is output	B

Result:

GO TO POWER WINDOW CONTROL SYSTEM. See DTC B2312: Power Window Switch Malfunction [08/2015 - ]

Result:

See step 7

CHECK FOR DTC*

Clear the DTCs.
See DTC CHECK / CLEAR [08/2015 - ]

Recheck for DTCs.

Result

Result	Proceed to
DTC B1243 is not output	A
DTC B1243 is output	B

Result:

DIAGNOSTIC TROUBLE CODE CHART. See DIAGNOSTIC TROUBLE CODE CHART [08/2015 - ]

Result:

See step 8

PROBLEM SYMPTOMS TABLE

See Problem Symptoms Table.

See PROBLEM SYMPTOMS TABLE [08/2015 - 08/2017] , or see PROBLEM SYMPTOMS TABLE [08/2017 - ]

Result

Result	Proceed to
Fault is not listed in Problem Symptoms Table	A
Fault is listed in Problem Symptoms Table	B

Result:

ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE

Result:

See step 9

OVERALL ANALYSIS AND TROUBLESHOOTING*

Terminals of ECU.
See TERMINALS OF ECU [08/2015 - 08/2017] , or see TERMINALS OF ECU [08/2017 - ]
Data List/Active Test.
See DATA LIST / ACTIVE TEST [08/2015 - 08/2017] , or see DATA LIST / ACTIVE TEST [08/2017 - ]

Operation Check.

See OPERATION CHECK [08/2015 - ]

Result

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Result:

See step 10

REPAIR OR REPLACE
Result

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Result:

NEXT

See step 11
CONFIRMATION TEST
Result

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Result:

NEXT

END